I will like to make an adventure for my D&D group, It's a simple idea, but i don't really know how to develop it... They will be " captured" or will begin in a dungeon (jail), where they will have to fight their way out... maybe a tournament??, They will start at lvl 9.. any way what i will really like is for you to help me with ideas or how to prepare the adventure for them... thxs!